He stressed that "any accusations against Russia in the context of various events in the Czech Republic are absolutely groundless."

"Voicing such accusations without evidence, without thoroughly - this is out of the ordinary actions, they are unfriendly, they do not just run counter to the interests of the peoples of the two countries, they have already caused extreme damage to bilateral relations," Peskov said.

Earlier Zeman said that the Security and Information Service had no evidence of the presence of "Russian agents" in the Vrbetice area at the time of the incident.

Deputy Speaker of the Federation Council Konstantin Kosachev, in an interview with RT, expressed the opinion that the position of the Czech president, "which does not exclude any versions, but which calls on these versions to be thoroughly investigated," can only be welcomed.